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CHICAGO, ILLINoisQ Lentement No.' 82,919, daad october 13, 186s.

' mnovnmzm' m situatotvv wnmow chess-BARS or' sanar-mors'.

The Schedulereferred toin Letters-Patent anmaking peut of the same.

rlhey may be combined with woodor .iron `f ralfnes,

or with vthemselves as cross-bars, without weakening' one or the other, andv also` give them a substantial beautiful appezuance.v

Being 'made narrow, they of more light ahroughlthe -window than the ordinary-woodencross-l -bars,an for large window-framea-would be 4mwahlighter thaii'solid iron. 'Bya selection Yof mateiial, or

'by dipping them into varnish, they will be completely prevented froin rusting. The face-of the same can be covered with sheet-brass -orother metal, and, plated with gold or silver, to. give them a perfect The several figures in the drawings show transverse sectionso'f a number of styles or patterns, as Well. as

how formed. l

There are several ways of giving them their required shape, such as by pressing in moulds, or drawing the vmetal through moulds or forms.'- Themost approved- 'method, however, is, after cutting 4thelsheet-metal into strips of suitable dimensions, to pass the same through a-'serie's of' .rolls, which will give it the required l 'shapes If two metals be sed, one as a facing, it 'is put en by the same process. For a more detailed description of the method 'of formingv my sash-bars, reference is had the auxiliary drawings, marked plates 2, 3,'and 21.- "First, a strip of sheet -iron, of proper dimensions, is 'lilst-.cutin any suitableway. Taking a strip of the width shown by Noll, plate 2, it. will receive the shape No. 2', "sam'e plate, by means of anordinary' tinfolding machine, as seen by Figures N os. 1 and 2', sheet v No. 3.' l In this condition,;a round bar of irona,is placed in the bend, fitting it snugly, and by passing this throughthe rol1ers,Nos. 3 and- 4, plate 3, the bar gets the shape shown by No. 3, plate 2. '.lhe'barfof iron being removed', the lip on No. Sisbent down, forming shape No. 4, by neaus of a folding-tool, as seen by No. 5,-plate3. Noi lL -will receive the shape of No.5,. by passing it between rolls, as seen by N o. 6, plate 2; then, by placing inside of it a round bar of iron, b, and passing it through rolls No. 7, the bar'No. 6, plate 2, is formed.'

The round iron bar'being removed, that'shaped jsash- .bar is finished, v

. Forms, as shown by Nos. 10,' 1 1,- aud 12, plate 2,

are madewithout the necessity of insertingiron-rods within the same.

Forms '13, '14,and i5, plate 2*, are madewith rollers orpresses, as before, but using' square bars, c de, on

the inside. In making No. 1 6, by 'means of rquerstr presses, Iuse a lcere of' lead, which is afterwards. removed; and-such as Nos; 17 and 18, I use properly- 'shaped-wooden formers. I then dipmy sash-bars in seething varnish for the covering, &c.

-To cover a bar'with brass, silver, &c;, I take a prop-l orly-sized strip, and give it form No. 7, plate' 2, by' .passiug'it through rolls No, 8, plate 3. Form No." 6 is Anow laid inside of this, and the ends turned over, as

shown by No. 8. This, then, being passed through the drawbanchef7 the two metals adhere, and the bar is completed, as seen'in No, 9.. i

- To join the barsaud secure. the to wooden frames, the operation is illustrated .by plate 4, No.- 1, showing `how one`pa1t of the bar is clit below or on the inside.

Nos. 2 and show. the cutting of the cross-ban No. a

4 illustrates howthe ends are turnedl to securebars to a flame. It is also shown in several of the other figures.`

Nos. 5 andfi representa top and, bottom view of; the-bars joined. In No.5, two lips, wand b, will be f seen of'one har soldered to the other. The joints will also be soldered, which finishes the joining-process. Having' thus fully described myimprovement, what, I claim as my invention,l and desire to secure by Let-` andzdescribed. A

' T A. GAMBENSY. Witnesses:

` F.E-.OANDA, 1

GaAs-Smm.

As a netr article. of manufacture, the hollow' Sheett, metal window-bars, constructed substantially asghovm 

